<span>What is 6 [4•(72-63)÷3]?
</span><span>6 [4•(72-63)÷3]
</span>
=72
Explanation:
The number of times the 6-sided number cube will be rolled will is

Let the numbers greater than 4 be represented below as


The number of sample space will be

The probability of rolling a number greater than 4 will be calculated below as

Hence,
To calculate the number of times a number greater than 4 will be rolled will be calculated below as

Hence,
The final answer is
X-7=8
Add 7 to both sides so you can isolate the variable
x=15
The mixed number to 18/8 is 2 and 1/4
To find this out you multiply 8 to get to 18, yet 8 only goes to 16 before going over 18, so 8 can multiply 2 times.
The 2 will be your whole number
and since there is 2 numbers left (18-16=2) that would be the numbers left over giving you 2 2/8.
yet the 2/8 can be simplified to 1/4 giving you 2 1/4 as your answer.
Hoped this helped!